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JIS G3459 SUS321H Stainless Steel Pipe
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Steel Pipe
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JIS G3459 SUS321H Stainless Steel Pipe Quick Details
Company Name: beite steel pipe
Country/Region: China
Product Name：JIS G3459 SUS321H Stainless Steel Pipe
FOB Price: US $2200-3600 / Ton | 1 Ton/Tons (Min. Order)
Port of Shipment：Tianjin,China
Payment：L/C or T/T
Delivery: 7-15 days after payment
Package：Standard export package,suit for all kinds of transport, or as required
JIS G3459 SUS321H Stainless Steel Pipe Dimensional Range & Specification
Outside Diameter：12.7mm——219mm
Wall thickness：3.0mm——12.7mm
Length：6000mm、12000m or specified length as required.
JIS G3459 SUS321H Stainless Steel Pipe
Standard:JIS G3459
Scope
JIS G3459 Standard specifies the stainless steel pipes (hereafter referred tp as "pipes") used for the pipings for corrosion resistance, low temperature sevice, high temperature service, etc.
SUS321H is One of the steel grades in JIS G3459 standard.
Method of manufacture
Pipes shall be manufactured by a seamless process, an automatic arc welding process, a laser welding process, or an electric resistance welding process.
Heat treatment of JIS G3459 SUS321H
| Classification | Grade | Solution treatment ℃ |
| Austenitic pipes | SUS 321H | Cold-finished 1095 min, rapid cooling Hot-finished 1050 min, rapid cooling |
Chemical composition of JIS G3459 SUS321H
| Grades | Chemical composition | ||||||||
| SUS 321H | C | Si | Mn | P | S | Ni | Cr | Mo | Others |
| 0.04~0.10 | 0.75 max. | 2.00 max. | 0.030 max. | 0.030 max. | 9.00~13.00 | 17.00~20.00 | -- | Ti 4】C% ~ 0. | |
Mechanical properties of JIS G3459 SUS321H
|
Grade |
Mechanical properties | |||||
| Tensile strength | Yield Strength | Elongation % | ||||
| kgf/mm 2 {N/mm2} | kgf/mm 2 {N/mm2} |
No. 11 test piece No. 12 test piece |
No.5 test piece | No.4 test piece | ||
| Longitudinal direction | Transverse direction | Longitudinal direction | Transverse direction | |||
| SUS 321H | 53{520}min. | 21{206} min | 35 min | 25 min | 30 min | 22 min |
Dimensional tolerances
The tolerances on outside diameter, wall thickness, and eccentricity of pipe
Tolerances on outside diameter, wall thickness and eccentricity
| Division | Tolerances on outside diameter | Tolerances on wall thickness | Tolerances on eccentricity |
| ot-finished seamless pipe | Under 50mm 【0.5mm | Under 4mm 【0.5mm |
At most 20 % of wall thickness
|
| 50mm or over 【1% | 4mm or over 【12.5% | ||
|
Cold-finished seamless pipe, automatic arc welded pipe, |
Under 30mm 【0.3mm | Under 2mm 【0.2mm | --- |
| 30mm or over 【1% | 2mm or over 【10% |
Remarks
The eccentricity means the ratio of the difference between maximum and minimum wall thickness measured in the same section to the specified wall thickness, and this shall not be applied to pipes under 5.6mm in wall thickness..
As for the portions locally ground or the like, the above tolerance on outside diameter shall not be applied if it is confirmed that the wall thickness is within the tolerance range given in the above table.
Tests:
Chemical analysis
Tensile test
Flattening test
Austenitic grain size test
Hydraulic test or nondestructive examination
Appearance
JIS G3459 SUS321H Pipes shall be straight for practical purposes, and their both ends shall be at right angles to the axis.
The inside and outside surfaces of the JIS G3459 SUS321H pipes shall be well finished, and free from defects detrimental to practical use.
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